SEMINARIO DI GEOMETRIA ARITMETICA

Venerdì 24 Marzo alle 14:00 (durata 1 ora e 15 minuti)

in Sala di Rappresentanza del Dipartimento di Matematica “F. Enriques”,

si terrà il seguente seminario:

Morten Lüders
(Leibniz Universität Hannover)

On the left Kan extension of the Chow group of zero cycles

Abstract: We explain different types of Chow groups of zero cycles for singular schemes and how they should be related. More precisely, we show that the Levine-Weibel Chow group of zero cycles is left Kan extended from smooth algebras in the affine case over algebraically closed fields, and even rigid for surfaces. One key ingredient is Bloch's formula for singular schemes. The motivation for these results comes from algebraic K-theory. This is joint work in progress with Matthew Morrow.

Tutti gli interessati sono invitati a partecipare.